a. A person must be at least 18 years old and a lawful permanent resident ("green card" holder).
b. A person must have resided continuously in the United States, having been lawfully admitted for permanent residence, for five years immediately preceding the date you filed your application for naturalization.
c. A person must have, after having been removed from conditional permanent resident status, based upon your marriage to a U.S. citizen, having resided in the United States for one year after the date the condition was removed.